Abstract [en]

Virtualization is a concept where several servers will be installed on the same physical machine and because of that they will also share the same hardware. This leads to the hardware using its full capacity, meaning that a company does not have to purchase physical components for each separate server.

The bachelor thesis intention is to examine two different operating systems, Windows 7 and CentOS, which will act as both host- and guest operating system in four possible combinations. And also how the processing unit handles TCP traffic which is sent via Iperf in form of a data stream to each individual virtual machine.

The four different combinations got a TCP stream sent to them in the same size as one another during a specific timeframe. Which left an amount of peaks showing the CPU usage in percent. The peaks were noted down and then compared to eachother.

With the possibilities in this project Windows 7 as a host operating system and CentOS as a guest operating system was the best combination. The opposite, CentOS as host and Windows 7 as guest was the worst combination, utilizing around three times more processing capacity than the best combination